# How do you solve the system of equations #x+y = 12# and #-10x+6y=-72#?

##### 1 Answer

Apr 19, 2018

#### Explanation:

You can really do what method you want but for this time I'm going to use the subtraction method. Apply the following:

Now I extend the first term by 10.

Now take these terms plus eachother:

To get:

Divide 16 on both sides to get

Now put that into:

To get:

Minus three on both sides to get

Check your work by putting them into the equations to see that they are accurate.

Hope this helps.